class.getMethod（）在我的上下文中不起作用

Question

I cannot figure out how this part of code always throws NoSuchMethodException. Can anyone help? The Method M... line is probably where the code is erring. Either the method getMethod is broken or I am using it wrong. If you need more of the file just ask. Thanks!

floorName = "Base";
try {
        Class[] cArg = new Class[5];
        cArg[0] = World.class;
        cArg[1] = Integer.class;
        cArg[2] = Integer.class;
        cArg[3] = Integer.class;
        cArg[4] = String.class;
        Method m = TowerFloors.class.getMethod("genFloor_" + floorName.toLowerCase(), cArg); //Probable Origin of Throwable Error
        try {
            done = (Boolean) m.invoke(m, x, y, z, color);
            success = done;
        } catch (Exception e) {
            DungeonMod.logger.log(Level.ERROR, "Error in generating tower floor \"" + floorName + "\"(" + e + "), generating \"Base\" floor instead.");
            done = genFloor_base(worldA, x, y, z, color);
        }
    } catch (Exception e) {
        DungeonMod.logger.log(Level.ERROR, "Error in generating tower floor \"" + floorName + "\"(" + e + "), generating \"Base\" floor instead.");
        done = genFloor_base(worldA, x, y, z, color);
    }

and here is the method:

 public static boolean genFloor_base(World world, int i, int j, int k, String color) {
    if (color.toLowerCase().equals("blue")) {
        //Floor
        BlockFill.fillRectangle(world, i - 10, j, k - 10, i + 10, j, k + 10, TowerDungeonBuildingBlocks.towerDungeonWallBlue);
        //Roof
        BlockFill.fillRectangle(world, i - 10, j + 5, k - 10, i + 10, j + 5, k + 10, TowerDungeonBuildingBlocks.towerDungeonWallBlue);
        //++Wall
        BlockFill.fillRectangle(world, i + 10, j + 1, k + 10, i + 10, j + 4, k - 10, TowerDungeonBuildingBlocks.towerDungeonWallBlue);
        //--Wall
        BlockFill.fillRectangle(world, i - 10, j + 1, k - 10, i - 10, j + 4, k + 10, TowerDungeonBuildingBlocks.towerDungeonWallBlue);
        //+-Wall
        BlockFill.fillRectangle(world, i + 10, j + 1, k - 10, i - 10, j + 4, k - 10, TowerDungeonBuildingBlocks.towerDungeonWallBlue);
        //-+Wall
        BlockFill.fillRectangle(world, i - 10, j + 1, k + 10, i + 10, j + 4, k + 10, TowerDungeonBuildingBlocks.towerDungeonWallBlue);
        return true;
    }
    return false;
}

(And yes this is a Minecraft mod)

Answer 1

Your method

public static boolean genFloor_base(World world, int i, int j, int k, String color) {

has 5 parameters, where i , j , and k , are of type int .

You'll want to use

int.class

instead of

Integer.class

to identify the parameter type.